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      The role of the human pulvinar in visual attention and action: evidence from temporal-order judgment, saccade decision, and antisaccade tasks.

      Progress in Brain Research
      Attention, physiology, Decision Making, Humans, Judgment, Male, Pulvinar, pathology, Saccades, Visual Perception

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          Abstract

          The pulvinar nucleus of the thalamus has been considered as a key structure for visual attention functions (Grieve, K.L. et al. (2000). Trends Neurosci., 23: 35-39; Shipp, S. (2003). Philos. Trans. R. Soc. Lond. B Biol. Sci., 358(1438): 1605-1624). During the past several years, we have studied the role of the human pulvinar in visual attention and oculomotor behaviour by testing a small group of patients with unilateral pulvinar lesions. Here we summarize some of these findings, and present new evidence for the role of this structure in both eye movements and visual attention through two versions of a temporal-order judgment task and an antisaccade task. Pulvinar damage induces an ipsilesional bias in perceptual temporal-order judgments and in saccadic decision, and also increases the latency of antisaccades away from contralesional targets. The demonstration that pulvinar damage affects both attention and oculomotor behaviour highlights the role of this structure in the integration of visual and oculomotor signals and, more generally, its role in flexibly linking visual stimuli with context-specific motor responses.

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          Author and article information

          Journal
          18718343
          10.1016/S0079-6123(08)00669-9

          Chemistry
          Attention,physiology,Decision Making,Humans,Judgment,Male,Pulvinar,pathology,Saccades,Visual Perception
          Chemistry
          Attention, physiology, Decision Making, Humans, Judgment, Male, Pulvinar, pathology, Saccades, Visual Perception

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